Multiple-fastening device



May 28, 1929. PIPE 1,714,726

MULTIPLE FASTENING DEVICE Filed July 24, 1926 Willi-W I I w immgw Patented May 28, 1929.

UNITED- STATES PATENT OFFICE.

WALTERL. PIPES, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO THE SHOE HARDWARE CO., OF, WATERIBURY, CONNECTICUT, A CORPORATION OF CONNECTICUT.

MULTIPLE-FASTENING DEVICE.

Application filed ,Tuly24, 1926. Serial). 124,758.

This invention relates to separable fasteners, and particularly to that type of fastener for overshoes, garments, automobile curtains and other purposes where two flexible stringers are locked-and unlocked by a slider, the

locking being effected by travel in one direction and unlocking by anopposite movement.

The object of the invention is to provide. an exceedingly simple locking device whichin will accordingly be very cheap to manufacture, which may be light in weight, small in size, and yet adapted to give a strong and durable union.

A feature of the invention. lies in the simplicity of the device employed, the engageable members being only sllghtly curved or semi.-

cylindrical in form. Another feature'of the invention lies in the slightly arched surface of the locking members whereby a bearing '20 surface is provided which permits the members to'meet in an ed e and to'be guided readily into an overlapping position. v

. According to the present invention the locking members are all alike and are therefore interchangeable. The locking members are adapted to be clamped upon the stringers which maybe of any suitable type but preferably consists of a fabric tape having a beaded or corded edge upon which the locking members are clamped. The locking members consist of a slotted portion adapted to receive the corded edge of the fabric, and engageable portions which are slightly curved or arched,

the members being adapted to engage or overlap in such a manner that the concave surface of one member fits over the convex surface of another when in lockedrelation. The members secured to one stringer alternate with those on the other so that when the sliding device is moved back and forth the look.- ing members will been aged and disengaged according to the direction of movement.-

The invention resides particularly in the form of the engag'eable portions of the locking members, the smooth and'slightly curved surface of which causes the contacting members to meet in an edge and move readily over one another into locking position. This invention discloses a fastener which is far so more simple than those previously thought to be required. It may be substantially square or rectangular in shape and only very slightly curved to prevent its disengagement when in interlocked position. It-has been found in practice that this simple type of fastener is very practical, will resist either lateral or longitudinal tension, and is adapted to be very easily and evenly adjusted.

In the following drawings:

Figure 1 is a front elevation view partly in cross section on an enlarged scale of a fastener embodying this invention.

Fig. 2 is a cross section on line aa of Fig. 1. H

Fig. 3 is a transverse section of the locking members.

Fig. 4 is a longitudinal cross section of the locking members showing their 1 staggered arrangement. I

Fig. 5 is a detailed View of one of the locking members.

Referring to Fig. 1 it will be seen that the stringers 1-1 have at their abutting edges A slidin cam operating device 5, many va-' rieties 0 which are well known, is mounted upon both stringers. Preferably it will be Y-shaped, branches 6 being separately mounted on the stringers thus forming a tongue which upon movement in one direction serves to engage the locking members and upon movement in the other direction to disengage them. Theslider may be operated by means of a ring 7 secured toit by the rivet 8. Fig. 5 represents one of the locking members having a slotted portion which consists of the jaws 9 and a slightly curved or arched portion 10 which is substantially semi-cylindrical in form. As clearly shown in Figs. 4' and 5 of the drawing, the interengageable portion of the fastening element is preferably of the form of a segment of a hollow cylinder. ,The engageable portion 10 may. be

of any desired shape but is preferably a together and give an exceedingly firm and durable union. The advantages of this type of fastener over the more complicated forms previously used is apparent since it is simple to make, more inexpensive and being less like- 1y to bind, may be locked and unlocked very smoothly and easily, forming at the same time an exceedingly firm and durable locking means.

' In an accompanying application Serial No. 124,757 applicant has disclosed a type of fastener which has a. curved surface but which is also circular or saucer shaped in form. This disclosure is primarily of an interlocking member which is not circular in form but may be rectangular, square or any convenient shape and which may be almost flat in contour.-

Having thus described my'invention, what I claim and desire to protect by Letters Pat- 'ent is:

- relation by a slider, said members having engageable portions, with unbroken concave and convex surfaces which are substantially straight in one direction.

2. In a multiple type of fastener, a plurality of like members adapted to be interlocked and disengaged in and from nested relation by a slider, said members having ongageable portions with unbroken concave and convex surfaces which are straight in a direction at right angles to the length of the members.

3. In a-multiple type of fastener, a plurality of like members adapted to be interlocked'and disengaged in and from nested relation by a slider, said members having engageable portions having the form of a segment of a hollow cylinder, the engageableportions being of uniform cross section.

4. In a multiple type of fastener, a plurality of like members adapted to be interlocked and disengaged in and from nested relation by a slider, said members having ongageable portions having the form of a segmentof a hollow cylinder, the engageable portions being of uniform cross section, and each cylindrical surface of the engageable portion having a radius of curvature many times as great as the thickness of the member.

Signed at New York, county of New York, State of New York, this 13th day .of July,

WVALTER L. PIPES.

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